The relevance is that we're here, now, today - not 70 years ago.
The relevance is that the usability of some things is not readily apparant at a given time - short barrels are nothing new and haven't been for 70 years, yet only recently was the "it's for criminals" mindset overcome and such items brought into common militia use.
The relevance is that you're stuck arguing standards from 60, 70, 150, 200 or more years ago, while the rest of us have moved into the 21st Century, and have the latest Parker verdict to support our RKBA.
Rights are Rights. It's not a "Right" if you have to ask permission. Why this is so hard to understand for some folks can only be explained by ignorance, or arrogance. Either ignorance that you have such a Right, or the arrogance to tell another person that they have no Rights.